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Série Saúde - Células-tronco e aplicação em terapêutica

Neste programa de Biologia iremos falar sobre as importantes células-tronco e as suas principais aplicações. O tema está relacionado com o estudo da qualidade de vida das populações humanas.

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Green-barred Woodpecker ( Colaptes melanochloros )

Physical appearance: 26 cm. The upper parts are green, somewhat yellow, barred in black. The inferior parts are buffy or white, also barred. The tail and the top of the head are black. The male has a red spot below the eye while in the female this spot is black. Distribution: From Eastern Amazon to Uruguay and Argentina. Habitat: Forest borders, gallery and secondary forests, woods and parks in cities. Diet: Feeds on ants and insect larva, mainly beetles. Also eats fruits. Reproduction: After courtship the couple builds a nest inside an old tree, sometimes palm trees and others. The nest is generally downwards, avoiding the water when it rains. Two to four eggs are laid and the ...

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White Woodpecker ( Melanerpes candidus )

28cm Identification: easily told apart from other woodpeckers for the black and white pattern, being the wings and the tail black. There is a yellow region on the face. It lives in noisy groups of 3 to 8 individuals. As other woodpeckers the diet is based on insects that it catches hammering tree trunks. The nest is built by the couple in a natural tree hole or a carved one. The female lays 3 or 4 eggs. The young birds leave the nest within about 35 days.

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Orange-headed Tanager ( Thlypopsis sordida )

13,5cm The most distinguishing features of this species are the yellowish-orange head and the grayish-green body. This shades of color may vary depending on the subspecies, given that this bird is distributed thoughout the tropical region South to the Amazon river and East to the Andes. There is also a curiously isolated population in the Orinoco river basin. It lives in secondary forest, forest edges and even in cities with plenty of trees. Spends most of its time in the canopy, rarely coming to the ground. This bird moves in a very typical way, climbing the branches in a fast zig-zag, up to the tip and then letting itself fall onto the base of the next branch. It feeds mainly on s...

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Ochre-collared Piculet ( Picumnus temminckhii )

10 cm. It is very small, smaller than a sparrow. The feet are relatively big. The back and wings are brown and the ventral part white barred in black. The forehead of the male is red, while the female’s is black with white dots. In the immature the head is all brown. Can be told apart from the White-Barred Piculet ( Picumnus cirratus ) for having an ochraceous region around the neck and for being darker, mainly on the upper parts. Distribution: Southeastern Brazil and spread southwards up to Argentina. Habitat: Forest edges, gallery and secondary forests, woods, parks and gardens in big cities. Diet: Feeds mainly on ants larvae and pupae, but also on other insects. Reproduction: ...

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White-spotted Woodpecker ( Veniliornis spilogaster )

White-spotted Woodpecker 18cm. Identification: it is a small woodpecker with drab colors. The body is brown, heavily spotted and barred in darker shades of brown and with some white spots below. The male has reddish regions in the head. Very little is known about this woodpecker, probably due to its inconspicuous colors and behavior. It lives in areas with plenty of trees as parks, woods and secondary forests. This woodpecker occurs mainly in the medium and higher forest levels, rarely coming to the ground. Like other woodpeckers it feeds on insects it collects from tree trunks and also on berries.

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Pseudopiptadenia leptostachya (Benth.) Rauschert

Nome popular mamica-de-porca.

Árvore até 16m, espinhos robusto no tronco; extremidade dos ramos com tricomas esparsos; folha composta, bipinada, paripinada, alterna, espiralada, com estípula diminuta, caduca, pecíolo com pulvino, 3cm compr., tomentuloso a glabrescente, nectário extra-floral pateliforme entre os folíolos basais e terminais, peciólulo com pulvino, 0,5 X 0,1cm, tomentuloso, nectário extra-floral pateliforme no ápice, folíolos 8, opostos, foliólulos 12-18, opostos, sésseis, lâmina rômbica, ápice acuminado, base cuneada em geral fortemente assimétrica, 4 X 1,5cm, margem inteira, ciliada, cartácea, venação campt...

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Alsophila sternbergii (Sternb.) D.S. Conant

Nome popular: samambaiuçu.

Feto arborescente até 16m; tronco ereto com escamas e raízes adventícias; frondes tripinatipartidas , pecíolo com espinhos conspícuos, ca. 0,6cm compr., esparsos, nigrescente no material seco, escamas, amarronzadas, até 1,5 X 0,1cm, peciólulo às vezes sulcado, 1 X 0,5cm, glabrescente, raque pubescente a glabrescente, achatada, sulcada, espinhos esparsos, ráquila sulcada, ferrugíneo-lanosa, folha composta, 1-5m compr., 2-pinada, pina alterna, dística, ca. 52 X 14cm, pínulas ca. 26 pares, alternas a subospostas, dísticas, penatilobadas, lâmina oblongo-lanceolada a elíptico-lanceolada, ápice agudo, base ass...

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Cyathea hirsuta C. Presl

Nome popular: samambaiuçu.

Feto arborescente até 7m; tronco ereto com escamas e raízes adventícias; frondes tripinatipartidas, pecíolo maior que 30cm compr., com espinhos diminutos, ca. 0,4cm compr. escamas esbranquiçadas, brilhantes, concentradas na base, peciólulo 0,5 X 0,5cm, glabrescente, raque pubescente, sulcada, amarelada no material seco, espinhos esparsos, ráquila sulcada, glabrecente, folha composta, até 6m compr., 2-pinada, pina oposta ou suboposta, pelo menos 30 X 22cm, pínulas opostas ou subopostas, dísticas, penatilobadas, lâmina oblongo-lanceolada a elíptico-lanceoladas, ápice longo acuminado, base truncada, 11 X 1...

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Cyathea phalerata Mart.

Nome popular: samambaiuçu.

Feto arborescente até 7m; tronco ereto com escamas e raízes adventícias; frondes tripinatipartidas, pecíolo com espinhos diminutos, marrons no material seco, 0,2cm compr., escamas amarronzadas, até 2,5 X 0,4cm, concentrados na base, peciólulo 1,5 X 0,4cm, tomentuloso a glabrescente, raque tomentulosa a glabrescente, sulcada, espinhos esparsos, folha composta, até 6m compr., 2-pinada, pina alterna, dística, penatilobada, pelo menos 36 X 21cm, pínula mais de 13 pares, oposta a suboposta, dística, penatilobada, lâmina oblongo-lanceolada, elíptico-lanceolada, ápice longo-acuminado, base assimétrico-truncada...

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Zantoxyllum fagara (L.) Sarg.

Nome popular mamica-de-porca.

Árvore até 15m, espinhos robustos no tronco; extremidade dos ramos glabra, estriada, acúleos esparsos, fortemente odorífera; folha composta, alterna, imparipinada, sem estípula, pecíolo cilíndrico, 2,5-4,5 X 0,2cm, tomentuloso, peciólulo canaliculado, 0,3 X 0,1cm, glabro, folíolos ca. 25 opostos ou subopostos, lâmina oblongo-elíptica ou elíptica, levemente assimétrica e às vezes falcada, ápice obtuso, base atenuada, assimétrica, 4-6 X 2cm,margem glanduloso-crenada, cartácea a subcoriácea, venação camptódroma, 5-7 pares de nervuras secundárias mais conspícuas na face abaxial, venação terciária f...

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Cecropia glaziovii Snethl.

Nome popular: embaúba.

Árvore até 18m, tronco cilíndrico, oco, nós evidentes; extremidade dos ramos estrigosa, cilíndrica e oca em forma de candelabro, nós evidentes, acinzentada; folha simples, alterna, estípula terminal, caduca, amplexicaule, deixando cicatriz cirular no nó, pecíolo sulcado, 19,5 X 1cm, estrigoso a glabrescente, lâmina digitada, 8-12 lobos, lobos com ápice agudo, base sagitada, 30 X 40cm, margem inteira algo irregular, ciliada, membranácea, venação actinódroma, 8-12 nervuras primárias, ca. 12-17 pares de nervuras secundárias paralelas, espaçadas ca. 0,5cm, mais conspícuas na face abaxial, venação terciária conspícua na abaxia...

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Results 1 - 20 from 22 Found materials (New search)